v3.10.0.1
Impacts of Adoption of Standards Related to Revenue Recognition and Leases to Previously Reported Results - (Detail) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 12 Months Ended
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
 [1]
Dec. 31, 2016
 [1]
Sep. 30, 2016
 [1]
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2016
Jul. 01, 2016
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]                        
Revenue $ 30,085 $ 26,819 $ 28,918 $ 24,538 $ 25,605 [1] $ 23,212 $ 25,826 $ 21,928 $ 110,360 $ 96,571 [1] $ 91,154  
Provision for income taxes                 19,903 4,412 5,100  
Net income $ 8,873 [2] $ 7,424 [2] $ (6,302) [2] $ 6,576 [2] $ 8,069 [1],[3] $ 5,486 $ 6,267 $ 5,667 $ 16,571 [2] $ 25,489 [1],[3] $ 20,539  
Diluted earnings per share $ 1.14 [4] $ 0.95 [4] $ (0.82) [4] $ 0.84 [4] $ 1.03 [1],[3] $ 0.70 $ 0.80 $ 0.72 $ 2.13 [4] $ 3.25 [1],[3] $ 2.56  
Balance Sheets                        
Accounts receivable, net of allowance for doubtful accounts $ 26,481       $ 22,431       $ 26,481 $ 22,431    
Operating lease right-of-use assets 6,686       6,555       6,686 6,555    
Other current and long-term assets         11,179         11,179    
Unearned revenue 32,720       26,656       32,720 26,656   $ 22,200
Deferred income taxes 541       5,734       541 5,734    
Operating lease liabilities 5,568       5,372       5,568 5,372    
Other current and long-term liabilities         24,621         24,621    
Stockholders' equity $ 82,718       87,711       $ 82,718 87,711 $ 83,090  
As Previously Reported                        
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]                        
Revenue                   89,950 85,320  
Provision for income taxes                   1,945 2,953  
Net income                   $ 21,204 $ 16,798  
Diluted earnings per share                   $ 2.71 $ 2.10  
Balance Sheets                        
Accounts receivable, net of allowance for doubtful accounts         19,792         $ 19,792    
Operating lease right-of-use assets         0         0    
Other current and long-term assets         11,147         11,147    
Unearned revenue         44,479         44,479    
Deferred income taxes         531         531    
Operating lease liabilities         0         0    
Other current and long-term liabilities         23,464         23,464    
Stockholders' equity         72,394         72,394    
New Revenue Standard Adjustment | Restatement Adjustment                        
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]                        
Revenue                   6,621 $ 5,834  
Provision for income taxes                   2,467 2,147  
Net income                   $ 4,285 $ 3,741  
Diluted earnings per share                   $ 0.54 $ 0.46  
Balance Sheets                        
Accounts receivable, net of allowance for doubtful accounts         2,639         $ 2,639    
Operating lease right-of-use assets         0         0    
Other current and long-term assets         32         32    
Unearned revenue         (17,823)         (17,823)    
Deferred income taxes         5,203         5,203    
Operating lease liabilities         0         0    
Other current and long-term liabilities         (26)         (26)    
Stockholders' equity         15,317         15,317    
New Lease Standard Adjustment | Restatement Adjustment                        
Balance Sheets                        
Accounts receivable, net of allowance for doubtful accounts         0         0    
Operating lease right-of-use assets         6,555         6,555    
Other current and long-term assets         0         0    
Unearned revenue         0         0    
Deferred income taxes         0         0    
Operating lease liabilities         5,372         5,372    
Other current and long-term liabilities         1,183         1,183    
Stockholders' equity         $ 0         $ 0    
[1] On December 8, 2016, we acquired LinkedIn Corporation. LinkedIn has been included in our consolidated results of operations starting on the acquisition date.
[2] Reflects the net charge (benefit) related to the TCJA of $13.8 billion for the second quarter, $(104) million for the fourth quarter, and $13.7 billion for fiscal year 2018.
[3] Includes $306 million of employee severance expenses primarily related to our sales and marketing restructuring plan, which decreased operating income, net income, and diluted EPS by $306 million, $243 million, and $0.04, respectively.
[4] Reflects the net charge (benefit) related to the TCJA, which decreased (increased) diluted EPS $1.78 for the second quarter, $(0.01) for the fourth quarter, and $1.75 for fiscal year 2018.